| Front | Congestion control: approaches (2) |
|---|---|
| Back | End-end - No feedback from network elements - jam has to be detected by terminals (delay, losses) -> Ex: TCP Network-assisted - Routers give feedback to end systems - Congestion flag - Explicit rate - Feedback: - Direct: Router send messages to sender - Indirect: Router mark packets, receiver sends these messages to sender -> Ex: ATM |
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